Other Information: Read the instructions, warnings and enclosed product leaflet before use. This product works mainly by preventing ovulation (egg release). It may also prevent fertilization of a released egg (joining of sperm and egg) or attachment of a fertilized egg to the uterus (implantation). Do not use if carton is open or tear strip is removed or blister seal is broken or missing. Store at 20-25 degrees C (68-77 degrees F). Levonorgestrel 1.5 mg. Chosen by millions of women. No. 1 OB/GYN recommended emergency contraceptive brand (Survey of 1000 OB/GYNs, February 2015). Reduces chance of pregnancy after unprotected sex. One tablet. One step. The sooner you take it, the more effective it will be. Will not harm an existing pregnancy. Reference: 1. Data on file. Teva Women's Health, Inc. www.PlanBOneStep.com. Visit us at: www.PlanBOneStep.com. Questions? Call 1-800-330-1271 or visit www.PlanBOneStep.com.